203121232022112 has 96 divisors (see below), whose sum is σ = 544608555789312. Its totient is φ = 66257887202304.

The previous prime is 203121232022101. The next prime is 203121232022113. The reversal of 203121232022112 is 211220232121302.

203121232022112 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203121232022113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31833828 + ... + 37678044.

It is an arithmetic number, because the mean of its divisors is an integer number (5673005789472).

Almost surely, 2^{203121232022112} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203121232022112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (272304277894656).

203121232022112 is an abundant number, since it is smaller than the sum of its proper divisors (341487323767200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

203121232022112 is a wasteful number, since it uses less digits than its factorization.

203121232022112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5851980 (or 5851972 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 203121232022112 its reverse (211220232121302), we get a palindrome (414341464143414).

The spelling of 203121232022112 in words is "two hundred three trillion, one hundred twenty-one billion, two hundred thirty-two million, twenty-two thousand, one hundred twelve".